Obsidian from Obsidian Cliff in Yellowstone

Obsidian Cliff: Humanity’s Tool Shed for the Last 11,500 Years
X-ray technology has allowed researchers a glimpse at the reaches of the Yellowstone landmark’s prized stone and its importance to Indigenous people.
By Jim Robbins
NY Times
March 20, 2023

For modern day researchers, the obsidian columns of Yellowstone have helped to reveal the travels and migration of people thousands of years ago. X-ray fluorescence technology has been used to identify the unique geochemical fingerprint of each separate deposit of obsidian, pinpointing the provenance of artifacts found elsewhere. Obsidian from here has been found across the continent.

A fingerprint for the most prized tool stone in paleoindian cultures transformed the field. It provides a window into the past, a flow through both space and time over thousands and, in some places, millions of years. It opens up unknown and unimagined connections and deepens the understanding of migration, networking and trade in populations around the world.


https://www.nytimes.com/2023/03/20/science/yellowstone-indigenous-people-obsidian.html?action=click&module=Well&pgtype=Homepage&section=Science

================

Article about the Hopewell Ceremonial Earthworks in Ohio mentioned in the above article being considered as a World Heritage Site.
https://www.yahoo.com/news/america-sacred-huge-implications-human-230000297.html



Edited 1 time(s). Last edit at 09/25/2023 12:26AM by KenS.